Pellet Stove Fireplace Pellet stove fireplaces come as freestanding models, or they can be fitted into existing chimneys burning wood, giving new life to old drafty fireplaces. They operate by using a thermostat to determine the temperature of the room and then feed pellets into fireplace at the right time. https://www.fireplacesandstove.com/products/independence-ps21-freestanding-pellet-stove-black